X形配筋短スパン梁の構造性能に関する実験的研究

概要

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In case of high rise reinforced concrete (RC) buildings it is effective to resist the large percentage of the seismic forces by coupled shear walls with short span beams at the core of floor plans. By this structural system it is possible to decrease the number of columns and beams providing large spaces for use. In order to build this structural system effectively, the short span beams should have high strength, large deformation capacity and damping capacity. And for this type of RC short span beams, it is effective to arrange longitudinal reinforcements diagonally. Cyclic loading tests of 16 specimens were carried out to clarify the seismic performances of short span coupling beams of which all the longitudinal reinforcements are diagonally assembled. Based on the test results, evaluation methods are proposed for the structural characteristics of the beams such as flexural strength, yielding deformation, deformation capacity and hysteretic damping.
社団法人日本建築学会の論文
2007-05-30